Stone-sawing machine



April 30, 1929. 1.. DuBols STGNE SAWING MACHINE Filed June 4, `1927 mvENToq -ATToRNEY Patented Apr. 30, 1929.

UNITED STATES PATENT OFFICE.

LIONEL DUBOIS, OF NORTHFIELD, VERMONT.

Application filed June 4,

This invention relates to improvements in sawing machines, :in object being to provide :isaiv which is adapt-ed tor heavy Work and is especially designed tor sawing stone.

.rrnother object of the inven n is the provision of a san blade which is especially adapted iter sawing stone, novel ineans being provided for removably securing the teeth to the blade, so th a t the teeth may be conveniontlj.' rcnioved and replaced :z nd. will be ilnsh with the opposite 'tacos ot the blade.

lilith the above and other objects in view. the invention further includes the following novel features and details et construction, to be hereinafter more 'fully described= illustrated in the accompanying drawings and point-ed ont in the appended claim.

In the drawings Figure 'l is an elevation ot the saw.

Figure Q is an enlarged 'fragmentary soction on the line 2-2 oi Figure l.

Figure 8 is a t'raginentary section on the line 3-3 of Figure l.

Ilinnre is a d etail view ot one ot the teeth. fore 5 an enlarged fragmentary scction on the line 5 5 of Figure l.

The saw bla d e which is indicated by the roference character 33 is termed ot a pair of disks 7l of like diameter. These disks are provided around their Iedges With dovetailed slots 72 whose opposite side edges are reversely bev- `eled as shown at 73. The disks are secured to- ,frcther with the slots ot the disks alternately arranged, so that ciroinnterenti ally spaced peripherally oils-et sockets are provided with the sockets of one disk having theirl bottoms formed by the adjacent face of the other disk.

1927. Serial No. 196,504.

These sockets receive shanks 74E of teeth 75, the shan ks being ot aI thickness equa-l tothe thickness of one of the disks and being shaped to snugly fit Within the sockets. The disks are secured together by screws 76 having sockets 77 therein to receive a suitable tool. The disks :may thus be separated for the removal of any ol the teeth and re-asseinbled after the teeth have been replaced. By reference to Figures and 5 of the drawings it Will be seen that the teeth are flush `with the opposite faces ot the disks. The disks are provided With openings T8 to receive the arbor 3l and additionalfastcning devices or bolts 'T9 are passed through the disks adjacent this openine'. A

The invention is susceptible of various changes in its forni, proportions and minor details ot' construction and the right is herein reserved to make such changes as properly :tall Within the scope of the appended claim.

I-Iaving described the invent-ion what is claimed is A rotary saw blade comprising a pair of disks oi' like diameter liavingspaced dovetailed slots therein with the side walls of the slots transversely and oppositely beveled, the slots of one disk being circnmierentially" spaced from the slots of the other disk to provide sockets. teeth adapted to extend from the odge ot the blade, Shanks upon the teeth, said Shanks conforming Yto the shape. of and `fitting Within the sockets and means to removably secure the disks together to removably secure the teeth to the blade.

In testimony whereof I aiiix my signature.`

LIONEL DUBOIS. 

